Slow Cooker Provencal Beef Stew

1 lb. boneless stewing beef
3 tbsp. flour
1 lb. sweet potatoes peeled and cut into 1" pieces
1 - 28 oz. can diced tomatoes
1 zucchini cut into 1" slices
1 onion chopped
4 cloves garlic minced
1/2 cup beef broth
1/4 cup sun dried tomato and oregano dressing (I used the epicure homemade sun dried tomato and herb dressing)
1/3 cup chopped fresh basil (I used 1-2 tsp. dried basil)

Toss meat with flour in slow cooker. Add remaining ingredients except fresh basil (I added the dried basil at this point). Stir in basil before serving. Cook on high 4-6 hours or low 6-8 hours.